New Industry Products

Medium-Power Planar Transformer handles up to 3kW

April 14, 2016 by Jeff Shepard

Vishay Intertechnology, Inc. today introduced a new planar transformer offering power from 1kW to 3kW in a compact 70mm by 53mm by 22mm size. Compared to devices built on traditional winding technology, the Vishay Sfernice PLA51 delivers the same power transfer / conversion while offering higher efficiency and a lower weight and profile.

The device released today is optimized for dc-dc power converters, on-board chargers for electric vehicles, UPS, power control cooling units, and solar inverters. In these applications, the PLA51's high typical efficiency of >99% typical reduces losses, while its low profile of 22mm saves space in subassemblies. In addition, the transformer's reduced weight of 170g is a key parameter for power supplies in avionics applications.

Providing excellent repeatability, the PLA51 features a frequency range of 50kHz to 400kHz and operates over a temperature range from -55 to +125 degrees C with heatsink dissipation. Offered in full-bridge, half-bridge, and forward power supply topologies, the transformer features tapped outputs for fast and easy connection. This RoHS-compliant device is also available in custom designs upon request.

Samples of the PLA51 are available now. Production quantities will be available in Q4 2016 with lead times of 12 weeks for large orders. Pricing for U.S. delivery only starts at $12 per piece in 10,000-piece quantities.